Re: TI-H: Another memory expander idea.

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Another memory expander idea.
From: Firepower5@aol.com
Date: Sat, 18 Jul 1998 12:47:43 EDT
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org


In a message dated 7/18/98 1:50:00 AM EST, gussie@alaska.net writes:

> the data would
>  >>>need to be buffered onto a flash memory chip.  So therefor, after about
>  >>>10,000 read/writes, you would need to replace the chip.  It may work if 
> you
>  >>>could do all the buffering through a PIC or AVR?  Anybody on this?
>  >>
>  >>Atmel *says* (They said the AVR could do 20MHz also) that their flash
will
>  >>last 1,000,000 writes.
>  >
>  >Umm, no, that's only on their low density serial EEPROM, not higher
>  >density flash.  Flash (no matter what the manufacturer) is still in
>  >the 10k to 150k rewrite range.  Nonetheless Microchip has some 256
>  >byte serial EEPROMs that allow 10,000,000 rewrites though.
>  
>  On the doc for the 4MBit chips used in the EuP it says 1,000,000 writes,
Mel.
> 
I'd be willing to bet that no one would use it for 1,000,000 transfers (if we
could get something  of that capacity).